Dead end connector



Dec. 2, 1941. J w wRlGHT 2,264,819

DEAD END CONNECTOR Filed Aug. 12, 1941 INVENTOR ATTORNEYS.

ciated parts;

Patented Dec. 2, 1941 UNlTED STATE S. PATENT OFFICEQ- 2 DEAD END CONNECTOR. V James Wk Wright, Birmingham, Mich.

Appl ca n August 941 ,S.eria1 Nd. 406,571

(o1. 24-126) V 7 x. 26, and is adaptedto non-rotatably but slidably 6 Claims.

The presentinvention relatesto a connector device and particularly relates .to .a connector for the dead ends of electrical transmission cables or .wires.

One of the primary objects of the present invention' is to provide improvements in connectors x.of the. type mentioned in which cables or wires may be quickly and easily attachedthereto.

Another object of the invention is to provide improvements in connectors of the type men-- tioned inwhich all parts thereof may be salvaged,

thereby effecting operating economies.

. Another, object of the present invention is to i provide improvements in devices of the type mentioned which make it safer in the handling of hot primaries as compared with the old types of constructions now in use.

Other objects of-the invention will become apparent from the following specification, the drawing relating thereto, and from the claims herein-- after set forth.

In the drawing, in which like numerals are used to designate like parts in the several views throughout:

Figure 1 is a top plan view of a connector element embodying features of the present invention and showing such element mounted-on its asso- Fig. 2 is a cross-sectional view taken substan Fig. 3 is an enlarged-side elevational view of the connector element illustrated in Figure 1;

1 6-6, respectively, of Figure 3;

Fig. '7 is a fragmentary vertical cross-sectional view of one end of the connector and illustrating a modified form of that shown in Figures 1 through 6; and

Fig. 8 is a view similar to Figure 7 and showing another modified form thereof.

Referring to Figures 1 through 6 of the drawing, one embodiment of the invention is illustrated and comprises a suitable supporting element H], which may be an ordinary crossbar or the like on a telephone or transmission pole. An insulator I2 is connected to the support It] through a clevis 14, to which a connector IE on the support i is pivotally connected by means of a pivot pin l8.

The dead end connector of the present invention is generally indicated at 2B, and comprises a hollow body portion 22 having a central bore 24 formed therein. Such hollow bore is square in cross section at one end thereof, as indicated at receive therein a square nut 28.

The correspondopening 30, therethrough through which a bolt 32,

*which'is'fixed to the insulator l2, extends into :threaded engagement with the nut 23 to fix the body to the insulator 12.

:with a frusto conical portion 34 which opens [through the opposite end thereof. A portion of tthe body 24 is cut away to provide an elongated opening 36 through the side wall thereof'which communicates with the bore 24. A conventional cable connector 38 is receivable within the hollow interior of the body 22 through the opening 36.

' +Such cable connector 38 is formed with frusto conical end portions,and is hollow and open at each end. In each end is received a contractible body element, and such body elements are constantly pressed outwardly in the connector 38 by means of a compression spring positioned therebetween. They are of such construction that a cable may be pushed into either end thereof, the

- member.

" corresponding bodies opening up against the action of the spring to permit such entrance and '"then,;upon an outward pull being exerted upon the cable, the bodies automatically contract and "clamp themselves to the cable, and, therefore, to

the connector.

In the present case, the frusto conical end of the connector 38 is adapted to be seated in the frusto conical end 34 of the bore in the body The connector 38'may thus "be positioned within the body member or removed therefrom through the'opcning 36.. The body member is formed with diametrically opposed strengthening ribs 40 and 42 and with another longitudinally extending strengthening rib 44, which is positioned substantially midway between the ribs 40 and 42. Such ribs are of substantial depth, and the ribs 40 and 42 are each formed with an elongated opening 46 therein next to the body 22.

In the use of the construction described above, the connector 20 is suitably mounted on an insulator l2 or the like, as described above, and the cable clamp is applied to the wire 48, or the like, at a point materially outwardly from the end of the connector 20.

A block and tackle, or similar pulling device, is extended between such cable clamp and the connector 20 by fastening one end of the block and tackle through the opening or openings 46. The block and tackle is then operated to pull the cable or wire to the desired tension or sag, and wire is then cut off to a point equivalent to the length of the forward end of the member 20 adjacent the tackle portion 30. A connector 38 is then inserted in place in the bore 24 in the position shown in Figure 2, and the end of the cable or wire is inserted into the end of the connector 38, as described above. Thereafter, the block and tackle is backed off, causing the cable or wire to be clamped by the connector 38, and then the block and tackle may be removed from the connector 20.

It will thus be seen that the connector 20, above described, provides a rugged construction and yet one in which the wire or cable 48.-may

be conveniently attached thereto. It will be appreciated that these are matters of considerable importance because the workman .performing such a job is usually working at'a bad handicap, and the convenience afforded ihim. by the. construction of the present invention .is a matter of prime importance.

All parts of the dead endrconnector may be salvaged, inasmuch as' the: ;cable"; which is anchored thereby, after being: cut off,'.'may be removed from the-connector 38. The'main body l portion is capable. of'being.="applied: andremoved from any support and1separat'edfrom the connector 38 without anydamage. thereto'under conditions of normal= handling.

It will be appreciatedthat itis not necessary to use the particular'insulator l2.as shown, but that any suitable type ofiinsulator or connector may be secured to the inner end of the main body portion 22. A modified .form of such-means is shown in Figure 7,: in which the inner end of the member. 20 is formed with aniintegral flange 50 which may beprovidedwith 'a'vertical pivot opening 52 therein; :Suchend may be connected to the insulator, or other support, by means of a clevis and pin connection such as thatshown between theinsulator and support in Figure 2.

Referring to Figure 8, another modified form is illustrated in which azclevis 54 is integrally formed adjacent the inner endof the member 22 and is'adapted to be connected to an eye-bolt 56 by means of a pivot bolt 58.

Formal changes. may be'made in thespecific embodiments of th invention described without I departing from the. spirit of the invention, the

scope of which is commensurate with the appended-claims.

What is claimed is:

1. A connector comprising-an elongated; hollow body member having an opening throughone end thereof, means providing an-opening through the side wall of the member communicating with the ing-inwardly toward said one end, means provid- -ing anopening through the side wall of the member communicating with the interior thereof, a

-longitudinallyextending rib formed on the exterior of said member, and means forming an attachment opening in said rib.

4. A connector. comprising an elongated, hollow body memberhaving an opening through one end thereof, the interior of said member tapering inwardly toward said one end, means providing an opening through the side wall of the mem- .ber' communicating with the: interior thereof,

rlongitudinally extending ribs formed on the exterior of .isaid member at diametrically opposed positions, and means forming attachment openings in said ribs.

5. A connectoncomprising an elongated, hollow body member havingan opening through one end thereof, .the interior of said member taper- .ing' inwardly toward said one end, connecting means formed at the opposite end of said member, means providing an opening through the side wall of the member communicating with the interior thereof, a plurality of longitudinally exmember communicating with the interior thereof, a connector clamping element adapted to be received within said member through said Wall opening andhaving a surface complementary to the tapering interior of said body-member, a plurality oflongitudinally extending ribs formed on the exterior of said member, and means forming attachment'cpenings in certain of said ribs.

JAMES W. WRIGHT. 

